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What do the terms “CPU bound” and “I/O bound” mean?
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It's pretty intuitive:
A program is CPU bound if it would go faster if the CPU were faster, i.e. it spends the majority of its time simply using the CPU (doing calculations). A program that computes new digits of π will typically be CPU-bound, it's just crunching number...
setTimeout / clearTimeout problems
...ion call.
You need to persist it, you can put it outside the function, or if you don't want to expose the variable as global, you can store it in a closure, e.g.:
var endAndStartTimer = (function () {
var timer; // variable persisted here
return function () {
window.clearTimeout(timer);
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EF Code First foreign key without navigation property
...]. That will link the property to whatever the key is on the parent table. Now you've got a hard-coded table name though.
– Triynko
Feb 27 '18 at 17:12
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Iterating over Java collections in Scala
...here is a wrapper class (scala.collection.jcl.MutableIterator.Wrapper). So if you define
implicit def javaIteratorToScalaIterator[A](it : java.util.Iterator[A]) = new Wrapper(it)
then it will act as a sub class of the Scala iterator so you can do foreach.
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Convert from List into IEnumerable format
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If you are not suppose to add something to the Collection then you should use/return IEnumerable.
– AZ_
Jun 25 '19 at 8:38
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Converting a string to a date in JavaScript
...e advantage of the library Moment.js that allows parsing date with the specified time zone.
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Removing all non-numeric characters from string in Python
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Not sure if this is the most efficient way, but:
>>> ''.join(c for c in "abc123def456" if c.isdigit())
'123456'
The ''.join part means to combine all the resulting characters together without any characters in between. Th...
Zero-pad digits in string
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@KonradRudolph If i have pass as digit value as integer that time given error, If pass as string that time not problem
– Hiren Bhut
Feb 1 '18 at 11:45
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Is there a built in function for string natural sort?
....isdigit() else text.lower()
for text in _nsre.split(s)]
Now this function can be used as a key in any function that uses it, like list.sort, sorted, max, etc.
As a lambda:
lambda s: [int(t) if t.isdigit() else t.lower() for t in re.split('(\d+)', s)]
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Convert hyphens to camel case (camelCase)
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To add upon this, if you want to camel case space separated words as well, the following would work: var camelCased = myString.replace(/(-+|\s+)\w/g, function (g) { return g[1].toUpperCase(); });
– wolfram77
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